{"title":"Etalon","description":"","products":[{"product_id":"lunt-60mm-ha-etalon-filter-ls60fha","title":"Lunt 60mm Ha Etalon Filter (LS60FHaP) - New Gen Etalon","description":"\u003ch1\u003eLunt 60mm Ha Etalon Filter\u003c\/h1\u003e\n\u003cp\u003eThe Lunt LS60FHa is a 60 mm aperture (no central obstruction) integrally tuned etalon for use on a customer supplied refractor.\u003c\/p\u003e\n\u003cp\u003eA B600 blocking filter provides full disk images on telescopes up to 540 mm focal length. Larger blocking filters suitable for longer focal length telescopes are also available options.  Choose the filter\/blocking filter package that is suitable for your telescope and your focuser size:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eB600 – Up to 540 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB1200 – Up to 1080 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB1800 – Up to 1620 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB3400 – Up to 3060 mm focal length, offered in 2″ straight-through tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Hydrogen-alpha filter is designed to retrofit (adapters required) a customer-supplied telescope for use during the day. It is easily removable so that the scope can continue to be used for night observing.\u003c\/p\u003e\n\u003cp\u003eBecause the LS60FHa H-Alpha Filter has an estimated bandpass of \u0026lt;0.4 Angstrom, it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system (double-stacking) will reduce the bandpass to ~\u0026lt;0.22 (dependent upon scope) allowing for higher resolution viewing and\/or imaging. An LS60FHa H-Alpha Filter without blocking filter is offered for this purpose or for those who already have a Lunt blocking filter. A Lunt blocking filter must be used with Lunt Ha filters at all times.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLS60FHa H-Alpha Filter, 60mm front-mounted non-obstructed hydrogen-alpha filter for use on a wide range of telescopes!\u003c\/li\u003e\n\u003cli\u003e\n\u003cul\u003e\n\u003cli\u003eAccommodates LS60THA and LS60MT Telescopes without need for adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS60FHa to your telescope with the appropriate adapter (sold separately), or use it to double-stack on an existing Lunt 60mm https:\/\/luntsolarsystems.com\/product-category\/solar-deep-space-universal-telescopes\/60mm-universal-telescopes\/”\u0026gt;LS60THa solar telescope or filter for a ~\u0026lt;0.22A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS60FHa and blocking filter for your telescope’s focal length and focuser size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOptical Aperture: 60 mm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eEtalon: Internal \u0026lt;0.4 Angstrom\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTuning: Tilt\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFocal Length: Customer Telescope\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eStorage: Aluminum finished hard case with fitted foam\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWeight: 3 lb (~1.5 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp\u003eLunt 60mm Ha Etalon Filter\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43125689942245,"sku":"LS-LS60FHaP","price":2093.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-60mm-ha-etalon-filter-ls60fha-astronomy-plus-1.webp?v=1690483749"},{"product_id":"lunt-50mm-ha-etalon-filter-ls50fha-new-gen","title":"Lunt 50mm Ha Etalon Filter for LS60Tha \u0026 LS60MT (LS50FHaP) - New Gen Etalon","description":"\u003ch1\u003eLunt 50mm Ha Etalon Filter for LS60Tha \u0026amp; LS60MT - New Gen Etalon\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eLS50FHa solar filter front-mounted non-obstructed hydrogen-alpha filter for use on Lunt ED Telescopes or Double Stacking an existing Lunt Solar System!\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAccommodates LS60THA and LS60MT Telescopes without need for adapter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS50FHa to an appropriately sized refractor of your choosing, or use it to double-stack on an existing Lunt 60mm Telescopes for a ~\u0026lt;0.22A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS50FHa and blocking filter to match your Visual and\/or Imaging requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDSII Requirements: \u003c\/strong\u003eNo adapter is needed to add one LS50FHa to another LS50FHa for double-stacking. The LS50FHa attaches natively to Lunt 60mm Model Telescopes (Lunt LS60THa and Lunt 60mm Universal Telescope)\u003cem\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lunt LS50FHa Solar Filter is a 50 mm aperture (no central obstruction) integrally tuned etalon for use on Lunt ED Refractors.\u003c\/p\u003e\n\u003cp\u003eLunt Solar will be introducing a larger selection of ED Telescopes that will meet your Solar needs for Daytime observing and meet the additional requirements of Nighttime observing.  In this way you can use one scope for day and night.\u003c\/p\u003e\n\u003cp\u003eLunt Solar also offer a full line of dedicated Solar Telescopes.\u003c\/p\u003e\n\u003cp\u003eYou MUST use a matching Lunt Blocking Filter with a Lunt Solar front mounted Filter (this is a safety requirement). For this reason choose the blocking filter that best suits your requirements for the system. It’s important to realize that a larger blocking filter is recommended for imaging due to the need for in-focus of the camera.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eB600 – Visual Use\u003c\/li\u003e\n\u003cli\u003eB1200 – Imaging and Visual Use\u003c\/li\u003e\n\u003cli\u003eB1200 – Visual Use\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/luntsolarsystems.com\/product\/lunt-blocking-filters-b600-b1200-b1800\/\"\u003eB1800\u003c\/a\u003e – Imaging and Visual Use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRemoving the LS50FHa Solar Filter for night use\u003c\/h4\u003e\n\u003cp\u003eThe Lunt ED refractors are designed to retrofitted with the LS50FHa Hydrogen-alpha Filter.  In this way you can use the ED telescopes during the day. Notably, they are easily removable so that the Lunt ED scope can continue to be used for night observing.\u003c\/p\u003e\n\u003cp\u003eBecause the LS50FHa Solar Filter has an estimated bandpass of \u0026lt;0.4 Angstrom it is capable of providing high contrast views of both surface and edge detail. Significantly, adding an additional etalon system (double-stacking) will reduce the bandpass to ~\u0026lt;0.22. Allowing for higher resolution viewing and\/or imaging. In addition, the part number LS50FHa is offered for this purpose or for those who already have a Lunt blocking filter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLS50FHa solar filter front-mounted non-obstructed hydrogen-alpha filter for use on Lunt ED Telescopes or Double Stacking an existing Lunt Solar System!\u003c\/li\u003e\n\u003cli\u003eAccommodates LS60THA and LS60MT Telescopes without need for adapter\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS50FHa to an appropriately sized refractor of your choosing, or use it to double-stack on an existing Lunt 60mm Telescopes for a ~\u0026lt;0.22A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS50FHa and blocking filter to match your Visual and\/or Imaging requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Aperture: 50 mm\u003c\/li\u003e\n\u003cli\u003eEtalon: Internal \u0026lt;0.4 Angstrom\u003c\/li\u003e\n\u003cli\u003eTuning: Tilt\u003c\/li\u003e\n\u003cli\u003eFocal Length: ED80 (f\/7) ED102 (f\/7)\u003c\/li\u003e\n\u003cli\u003eFilter Storage: Aluminum finished hard case with fitted foam\u003c\/li\u003e\n\u003cli\u003eFilter Weight: 2 lb (~1kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLunt 50mm Ha Etalon Filter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43125690007781,"sku":"LS-LS50FHaP","price":1603.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-50mm-ha-etalon-filter-ls50fha-astronomy-plus-1.webp?v=1690483749"},{"product_id":"lunt-50mm-double-stack-filter","title":"Lunt LS50C Compact Double-Stack Filter - Newest Version (LS50CP)","description":"\u003ch1\u003eLunt LS50C Compact Double-Stack Filter\u003c\/h1\u003e\n\u003cp\u003eThe specially-designed Lunt Solar Systems LS50C is a compact double stack filter. Notably, it was made especially for the Lunt LS50THa H-alpha Solar Telescope. The LS50C lowers the bandpass of the LS50THa to less than \u0026lt;0.22 Angstroms giving you truly stellar, professional quality views. The LS50C gives you the option of upgrading your single-stack LS50THa to a double stack solar telescope. Furthermore, you can install the upgrade yourself. Because the LS50THa screws on the the front of your LS50THa, so you won’t have to send it back to our factory.\u003cbr\u003e\u003cbr\u003eBy adding a double stack filter to your solar telescope, you will be able to see a crisp, clear image of the surface prominence’s of the Sun. This will give you the images that you need for research or just viewing enjoyment.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e This filter cannot be used without a blocking filter.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Lunt LS50C is a compact double-stacking filter for the LS50THa telescope\u003c\/li\u003e\n\u003cli\u003eIt lowers the bandpass to \u0026lt;0.22 Angstroms\u003c\/li\u003e\n\u003cli\u003eScrews easily onto the front of the LS50THa\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLunt 50mm Compact Ha Etalon Filter\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":43133158654181,"sku":"LS-LS50CP","price":1393.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-50mm-compact-ha-etalon-filter-ls50c-astronomy-plus-1.webp?v=1690483750"},{"product_id":"lunt-60mm-ha-etalon-filter-previous-generation-sale-ls60fha","title":"Lunt 60mm Ha Etalon Filter - Previous Generation Sale (LS60FHa)","description":"\u003ch1\u003eLunt 60mm Ha Etalon Filter\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eLS60FHa H-Alpha Filter, 60mm front-mounted non-obstructed hydrogen-alpha filter for use on a wide range of telescopes!\u003c\/li\u003e\n\u003cli\u003eConnect the Lunt LS60FHa to your telescope with the appropriate adapter (sold separately), or use it to double-stack on an existing Lunt 60mm LS60THa solar telescope or filter for a ~\u0026lt;0.5A band pass!\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate LS60FHa and blocking filter for your telescope’s focal length and focuser size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRequired Accessories:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eTypically an adapter plate will be required to attach a Lunt Solar Filter to the front of a customer-supplied telescope. These adapters are in stock for the more common user scopes, but can be custom made to your specific requirement if needed. No adapter is needed to connect one LS60FHa to another for double-stacking.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Lunt LS60FHa is a 60 mm aperture (no central obstruction) integrally tuned etalon for use on a customer supplied refractor.\u003c\/p\u003e\n\u003cp\u003eA B600 blocking filter provides full disk images on telescopes up to 540 mm focal length. Larger blocking filters suitable for longer focal length telescopes are also available options. Choose the filter\/blocking filter package that is suitable for your telescope and your focuser size:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eB600 – Up to 540 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB1200 – Up to 1080 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB1800 – Up to 1620 mm focal length, offered in 1.25″ or 2″ diagonal\u003c\/li\u003e\n\u003cli\u003eB3400 – Up to 3060 mm focal length, offered in 2″ straight-through tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis Hydrogen-alpha filter is designed to retrofit (adapters required) a customer-supplied telescope for use during the day. It is easily removable so that the scope can continue to be used for night observing.\u003c\/p\u003e\n\u003cp\u003eBecause the LS60FHa H-Alpha Filter has an estimated bandpass of \u0026lt;0.70 Angstrom, it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system (double-stacking) will reduce the bandpass to ~\u0026lt;0.50 (dependent upon scope) allowing for higher resolution viewing and\/or imaging. An LS60FHa H-Alpha Filter without blocking filter is offered for this purpose or for those who already have a Lunt blocking filter. A Lunt blocking filter must be used with Lunt Ha filters at all times.\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLunt 60mm Ha Etalon Filter\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eLunt 5-Year Warranty\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":48780201263333,"sku":"LS-LS60FHa","price":2700.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/lunt-60mm-ha-etalon-filter-ls60fha-astronomy-plus-1.webp?v=1690483749"}],"url":"https:\/\/istronomyplus.com\/collections\/etalon.oembed","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}